package com.itheima.reggie.controller;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 *
 * 分类管理
 */
@Slf4j
@RestController
@RequestMapping("category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     */
    @PostMapping
    public R<String> save(@RequestBody Category category){
        log.info("category:{}",category);
        categoryService.save(category);
        return R.success("添加分类成功");
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
   @GetMapping("page")
    public  R<Page<Category>> page(Integer page,Integer pageSize){
      //分页构造器
      Page<Category> pageInfo = new Page<>(page, pageSize);
      //条件查询
      QueryWrapper<Category> queryWrapper = new QueryWrapper<>();
      //添加排序条件,根据sort进行排序
      queryWrapper.orderByDesc("sort");
      //分页查询
      categoryService.page(pageInfo,queryWrapper);
      return R.success(pageInfo);
   }

    /**
     * 根据id分类删除
     * @param id
     * @return
     */

    @DeleteMapping
    public R<String> delete(Long id){
        //categoryService.removeById(id);
        categoryService.remove(id);
        return R.success("删除成功");
    }

    /**
     *根据id修改分类信息
     */
    @PutMapping
    public R<String> update(@RequestBody Category category){
      categoryService.updateById(category);
      return R.success("更新分类信息成功");
    }

    /**
     * 根据条件查询分类数据
     * @param type
     * @return
     */
    @GetMapping("list")
    public R<List<Category>> list (Integer type){
       //条件构造
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
       //添加条件
        queryWrapper.eq(type!=null,Category::getType,type);
        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort);
        List<Category> list = categoryService.list(queryWrapper);
        return R.success(list);
    }
}
